Roll for winding paper webs.



No. 629,976. Patented Aug. I, I899. J. H. BAKER, G. F. SHEVLIN & F. H. BAKER.

ROLL FDR WINDINGPAPEB WEBS.

[Application filed Mar. 12, 1896.)

(No Model.)

UNITED STATES PATENT OFFICE.

JAMES H. BAKER, GEORGE F. SHEVLIN, AND FREDERICK H. BAKER, OF SARATOGA SPRINGS, NEW YORK.

ROLL FOR WINDING PAPER WEBS.

SPECIFICATION forming part of Letters Patent No. 629,976, dated August 1, 1899.

Application filed March 12, 1896. Serial No. 582,897. (No model.)

To all whont it may emtccrm Be it known that we, JAMES H. BAKER,

GEORGE F. SHEVLIN, and FREDERICK 11. BA-

shaft in larger size.

KER, citizens of the United States, residing at Saratoga Springs, in the county of Saratoga and State of New York, have invented an Imin printing-machines, have been rolled upon tubes, and in some instances tubes of paper or cardboard have been employed for this purpose, and it is important, both in winding the web of paper upon the tube and in unwinding the same as it may pass into the printingpress or other machine, to support the tube accurately so that the roll may revolve with uniformity. Movable cones upon the shaft of the machine, which have heretofore been made use of, are not well adapted to receiving and supporting the tube, especially when such tube is of paper. We make use of a shaft having upon it taper screws that act within tubular expansible supports to cause them to hold the roll-tube at its ends, and the shaft is screw-threaded near its ends to receive nuts that determine the proper position of the tapering screws for roll-tubes of different lengths, and the taper screws are right and left handed, so that the supports are simultaneously expanded orcontracted at the ends of the rolltube by rotating the shaft and taper screws.

In the drawings, Figure 1 shows the rolltube in section and the other parts in elevation. Fig. 2 is a section at one end of the Fig. 3 is an end view. Fig. 4 shows the spring-ring detached. Fig. 5 is a cross-section at the linem m, Fig. 2; and

Fig. 6 shows a modification of the eXpa-nsible support.

The roll-tube A may be of any desired ma terial and of a proper size to receive around it the paper as it is wound into a roll, .and, as aforesaid, the present improvement is especially available with roll-tubes of thick paper.

The shaft B is of ordinary character, and it may be the shaft that is provided in the paper-making machine or it may be the shaft that is provided for supporting the roll in a printing-press or other machine into which the roll is inserted for the web of paper to be wound off, and the end portions of this shaft B are adapted to be received into suitable boxes or bearings inthe paper-making machine or other apparatus, and the extreme ends of such shaft are polygonal, as at 2, for receiving a wrench or key for rotating the shaft or holding it stationary, and there is a screw-threaded portion 3 near the end of each shaft for the reception of the nuts C, and these screw-threaded portions 3 are advantageously right and left handed.

Adjacent to each of the nuts C is a tapering screw D, that can be rotated upon the shaft B, and its exterior surface is tapering and screw-threaded, and it is advantageous to provide a set screw or pin 4: by which the taper screw can be connected firmly with the shaft when desired.

The expansible supports E are each made with two or more parts that are held together by the spring-rings F, introduced into annular recesses between the flanges 6, and these eXp-ansible supports E are internally screwthreaded to lit the taper screws D, and the exterior surfaces of such expansible supports are adapted to fit the interior of the roll-tube A at its respective ends, and it is advantageous to make the shaft B with a central enlargement A, that is slightly smaller than the interior of the roll-tube A, so as to allow such roll-tube to he slipped on with facility; but this central support A prevents the tube A springing or bending during the Winding or unwinding operations.

It will now be understood that the roll-tube A is slipped over the shaft and the parts therewith connected. When the expansible supports have been screwed along upon the taper screws sufficiently far to contract them to the necessary extent and when the roll-tube A is in position, the shaft 13 and 'the taper screws D are rotated, or the expansible supports E are rotated and the shaft held still, sufficient to screw the supports E toward the larger ends of the taper screws D and expand such supports andfirmly hold the roll-tube A in position, and the roll-tube is disconnected by a reverse movement of the respective parts.

It will be understood that the nuts O prevent any movement of the parts endwise of the shaft B and allowfor adjusting the parts to bring the tube-roll in the proper position for receiving the web of paper. The outer end portions of the taper screws D are squared or polygonal to receive a suitable wrench or turning device,and where the set-screws 4 are provided the taper screws can be rotated together by turning the shaft B, or when the set-screws are loosened either taper screw D may be rotated upon the shaft independent thereof.

The expansible supports E may be made of one piece cut through or divided at one side, as seen in Fig. 6, so as to be expansible.

If desired, either taper screw and its expansible support can be removed by taking off the nuts 0 to facilitate the insertion of the shaft into the roll-tube.

In the present improvement the nuts 0, screwed upon the shaft, being adjustable, bring the other parts into their proper position lengthwise of the shaft for the ends of shaft and divided expansible supports internally screw-threaded and expanded by the taper screws, substantially as set forth.

Signed by us this 31st day of January, 1896.

JAMES H. BAKER. GEO. F. SHEVLIN. FREDERICK H. BAKER. Witnesses:

WILLIAM A. PIERSON, GEORGE M. CRANE. 

